Firearm Upper Receivers

M&P15 Rifles are the ideal modern sporting rifle. Built to perform multiple uses under various conditions, M&P15 Rifles are as versatile as they are reliable. Engineered for a wide variety of recreational, sport shooting and professional applications, M&P15 Rifles are easy to accessorize, but hard to put down. M&P15 Rifles are lightweight and rugged embodying the best combination of function and form. Features Forged, Integral Trigger Guard, Armornite® Finish (Durable Corrosion Resistant Finish), Chromed Firing Pin, Forward Assist.

Windham Weaponry's Upper Receiver Assemblies are designed as replacement or upgrade units for the AR15 Type Rifle. As with our complete rifles, they are manufactured to the highest standards from the best materials available. Barrels are Chrome Lined for long wear and easy cleaning - machined from 4150 Chrome Moly Vanadium Steel, finished in Black Manganese Phosphate, and rifled 1 Turn in 9" - Right Hand Twist for optimum accuracy with a wide range of bullet weights. Upper Receivers are CNC machined from forged 7075 T6 Aircraft Aluminum and finished in Hardcoat Black Anodize. Bolts are machined from Carpenter 158 Steel - Magnetic Particle and High Pressure Tested.